seller Lastactioncowboy makes these custom-screened Super Mario piranha plant underwear and sells 'em for a mere $17. Link (via Geekologie)
Yoshi from Super Mario Ornament by Hallmark Canada
Gearhumans 3D Bowling Pin And Ball Custom Beach Shorts Swim Trunks
Nintendo Boys Super Mario Kart Boxer Briefs Underwear, 4-Pack, Sizes 4-10
Custom Super Mario underwear - Boing Boing
Custom Super Mario underwear - Boing Boing
Super Mario Underwear Boys Large Size 10 Mariokart Boxer Briefs Fun Video Game
5 pairs of ultra soft combed cotton underwear featuring characters such as Mario, Luigi & others
Super Mario Bros., Boys Underwear, 5 Pack Briefs (Little Boys & Big Boys)
Nintendo Super Mario Bros. Mario; Luigi, Boys Underwear, 3 Pack Athletic Boxer Briefs (Little Boys & Big Boys)
Super Mario Bros. Wonder (Video Game) - TV Tropes
The Big Lebowski Talking Bowling Pin Mini Kit